/// <summary>
/// Do a synchronous search
/// Use SearchAsync to run a background thread
/// </summary>
/// <param name="configuration">Search operation parameters</param>
/// <returns>Search results</returns>
public FRResults SearchSync(FRConfiguration configuration)
{
try
{
FRResults results = new FRResults();
List <String> files = configuration.GetFiles();
FRSearch search = configuration.GetSearch();
foreach (String file in files)
{
String src = configuration.GetSource(file);
List <SearchMatch> matches = search.Matches(src);
FRSearch.ExtractResultsLineText(matches, src);
results[file] = matches;
}
return(results);
}
catch (Exception ex)
{
MessageBox.Show("Exception " + ex.Message + "\n" + ex.StackTrace);
return(null);
}
}
/// <summary>
/// Background work main loop
/// </summary>
private void BackgroundWork(Object sender, DoWorkEventArgs e)
{
try
{
FRConfiguration configuration = e.Argument as FRConfiguration;
if (configuration == null)
{
e.Result = null;
return;
}
// get files
Int32 count = 0;
List <string> files = configuration.GetFiles();
if (files == null || files.Count == 0)
{
e.Result = new FRResults(); // empty results
return;
}
FRResults results = new FRResults();
FRSearch search = configuration.GetSearch();
string replacement = configuration.Replacement;
if (this.backgroundWorker.CancellationPending)
{
e.Cancel = true;
}
else
{
// do search
Int32 total = files.Count;
Int32 lastPercent = 0;
List <SearchMatch> matches;
string src;
foreach (String file in files)
{
if (this.backgroundWorker.CancellationPending)
{
e.Cancel = true;
}
else
{
// work
src = configuration.GetSource(file);
search.SourceFile = file;
results[file] = matches = search.Matches(src);
if (matches.Count > 0)
{
if (replacement != null)
{
// replace text
src = search.ReplaceAll(src, replacement, matches);
configuration.SetSource(file, src);
}
else
{
FRSearch.ExtractResultsLineText(matches, src);
}
}
matches = null;
// progress
count++;
Int32 percent = (100 * count) / total;
if (lastPercent != percent)
{
this.backgroundWorker.ReportProgress(percent);
lastPercent = percent;
}
}
}
}
e.Result = results;
}
catch (Exception ex)
{
MessageBox.Show("Exception during background operation:\n" + ex.Message + "\n" + ex.StackTrace);
e.Result = null;
}
}